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Finding the Fourth Proportional to 79,975.84, 110,344.08 and 48,134.56

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Solution

The fourth proportional to 79,975.84, 110,344.08 and 48,134.56 is: 66,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,975.84 : 110,344.08 = 48,134.56 : x
  2. Step 2: Convert to fraction form
    79,975.84/110,344.08 = 48,134.56/x
  3. Step 3: Cross multiply
    79,975.84x = 110,344.08 × 48,134.56
  4. Step 4: Simplify right side
    79,975.84x = 5,311,363,739.40
  5. Step 5: Solve for x
    x = 5,311,363,739.40/79,975.84
  6. Step 6: Final answer
    x = 66,412.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.